We brush our _________(tooth) _______(two ) a day
问题描述:
We brush our _________(tooth) _______(two ) a day
答
teeth
twice
答
teeth twice
答
teeth表示复数,twice表示两次
答
tooth------(p.l.)teeth two--------变为次数twice
答
teeth twice
我们每天刷两次牙.
tooth 复数形式是不规则变形 teeth
表示两次 twice